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Oblique‐incidence sporadic‐ E propagation and its ionospheric attenuation
Author(s) -
Miya Kenichi,
Shimizu Kohei,
Kojima Toshiro
Publication year - 1978
Publication title -
radio science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.371
H-Index - 84
eISSN - 1944-799X
pISSN - 0048-6604
DOI - 10.1029/rs013i003p00559
Subject(s) - attenuation , ionosphere , sporadic e propagation , oblique case , radio wave , refraction , radio propagation , ionospheric propagation , ionospheric reflection , antenna (radio) , high frequency , physics , optics , acoustics , geology , computational physics , telecommunications , computer science , ionospheric absorption , geophysics , linguistics , philosophy
This paper describes an improved method for the calculation of sporadic‐ E signal strength which was mainly developed through the work of the Interim Working Party 6/8 of the CCIR. In this method, the effect of atmospheric radio refraction on the sporadic‐ E propagation path and of antenna height gain are given major consideration. Empirical formulas of sporadic‐ E attenuation are also presented for use in computer calculation. Finally, some examples are shown for comparing the values predicted by using this method with measured ones. This study is believed to be applicable to the lower VHF band and upper HF band (e.g., 10 to 150 MHz).